When scanning the log is not enough, you can monitor your applications programmatically. For example, you can send messages of a certain type in an email.
You can write methods that are passed a class representing every error or warning message that is printed to the log. This may help you monitor and audit a MobiLink server.
The following code installs a LogListener for all warning messages, and writes the information to a file.
class TestLogListener implements LogListener { FileOutputStream _out_file; public TestLogListener(FileOutputStream out_file) { _out_file = out_file; } public void messageLogged(ServerContext sc, LogMessage msg) { String type; String user; try { if (msg.getType() == LogMessage.ERROR) { type = "ERROR"; } else if (msg.getType() == LogMessage.WARNING) { type = "WARNING"; } else { type = "UNKNOWN!!!"; } user = msg.getUser(); if (user == null) { user = "NULL"; } _out_file.write(("Caught msg type=" + type + " user=" + user + " text=" + msg.getText() + "\n").getBytes() ); _out_file.flush(); } catch(Exception e) { // Print some error output to the MobiLink log. e.printStackTrace(); } } } |
The following code registers TestLogListener to receive warning messages. Call this code from anywhere that has access to the ServerContext such as a class constructor or synchronization script.
// ServerContext serv_context; serv_context.addWarningListener( new MyLogListener(ll_out_file) ); |
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